This "pinkhouse" at Caliber Biotherapeutics in Bryan, Texas, grows 2.2 million plants under the glow of blue and red LEDs. Courtesy of Caliber Therapeutics hide caption

itoggle caption Courtesy of Caliber Therapeutics

The taste of Mock's tomatoes starts with the seed. He uses only organic varieties, including cherry and several heirloom varieties. Allison Aubrey/NPR hide caption

itoggle caption Allison Aubrey/NPR